Add an IPC method for Blink to call RapporService::RecordSample()

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index e29800cbcee6305ae7f4893414e2345ef73722f1..142c3f558f67968a009169f7629103f3667f7b9d 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -1537,6 +1537,8 @@ bool RenderProcessHostImpl::OnMessageReceived(const IPC::Message& msg) {
                           SuddenTerminationChanged)
       IPC_MESSAGE_HANDLER(ViewHostMsg_UserMetricsRecordAction,
                           OnUserMetricsRecordAction)
+      IPC_MESSAGE_HANDLER(ViewHostMsg_UserMetricsRecordRappor,
+                          OnUserMetricsRecordRappor)
       IPC_MESSAGE_HANDLER(ViewHostMsg_SavedPageAsMHTML, OnSavedPageAsMHTML)
       IPC_MESSAGE_HANDLER(ViewHostMsg_Close_ACK, OnCloseACK)
 #if defined(ENABLE_WEBRTC)
@@ -2370,6 +2372,12 @@ void RenderProcessHostImpl::OnUserMetricsRecordAction(
   RecordComputedAction(action);
 }
 
+void RenderProcessHostImpl::OnUserMetricsRecordRappor(
+    const std::string& metric,
+    const std::string& sample) {
+  RecordRappor(metric, sample);
+}
+
 void RenderProcessHostImpl::OnCloseACK(int old_route_id) {
   SessionStorageHolder* holder = static_cast<SessionStorageHolder*>
       (GetUserData(kSessionStorageHolderKey));